package cn.antho.controller;

import cn.antho.domain.User;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

@RestController
@RequestMapping("/order")
public class OrderController {

    @Autowired
    private RestTemplate restTemplate;

    @GetMapping("/{id}")
    @HystrixCommand(fallbackMethod = "fallbackMethod")
    public User getUserById(@PathVariable("id") Long id) {
        String url = "http://user-server/user/" + id;
        return restTemplate.getForObject(url, User.class);
    }

    // 降级方法，参数和返回值必须和被熔断的方法一致 ，方法名要和fallbackMethod的值一致
    public User fallbackMethod(Long id){
        return new User(-1L, "服务熔断触发", "用户服务不可用！");
    }

}
